Apparatus for treating bandlike materials



Nov. 24, 1964 G. FLEISSNER APPARATUS FOR TREATING BANDLIKE MATERIALS Filed Oct. 20, 1961 Fig n 1O 15 k Fig.9 Fig.10

United States Patent 8 Claims. iii. a as-105 The present invention relates to apparatus for treating all kinds of .bandlike materials, and especially for the drying, steaming, and setting of fiber and sliver cables.

Devices are known in which the band material is treated by passing it through sieve drum driers either in a straight direction or while layed in loops. For treating heavy cables of rayon staple of a thickness of 300,000 den. and more, sieve drum driers have not proved very successful. Actually, however, it is even often necessary to treat individual cables of 500,000 up to 1,000,000 den.

For treating such cables, the present invention provides that the band is suspended in the form of vertical loops and thus passed through a treating chamber. This has the advantage that the entire band material can be placed within a relatively small chamber in which it may be treated slowly. The individual loops are passed through the treating chamber, and they are suspended in the chamber on a suspension device at an angle to the conveying direction. According to the invention, the loops are held by pins, rods, rails or conveying .belts which serve as conveying means as well as supporting means.

For the purpose of suspending the slivers in vertical loops, the invention provides a motor for driving feed rollers for the band material at one end of the treating chamber on rails which extend transverse to the conveying direction of the material. This motor is movable back and forth above the suspension means for the loops and its speed is adjustable in such a manner that, when passing over the suspension means, loops of the desired length will be formed which are suspended perpendicularly.

The features and advantages of the present invention will become more clearly apparent from the following detailed description thereof which is to be read with reference to the accompanying drawings, in which:

FIGURE 1 shows a diagrammatic side view of the apparatus according to the invention;

FIGURE 2 shows a plan view of a part of one of the suspension rods, as shown in FIGURE 1, but without loops;

FIGURE 3 shows a plan view of a part of a suspension rod with the loops applied thereon;

FTGURE 4 shows a diagrammatic view of a modification or" the suspension means with the conveyor belts in the raised position;

FIGURE 5 shows a side view of ing to FIGURE 4;

FIGURE 6 shows a view similar to FIGURE 4 but with the conveyor belts in the lowered position;

FIGURE 7 shows a side view of FIGURE 6;

FIGURE 8 shows a diagrammatic view of a compensating device;

FIGURE 9 shows a plan view of a further modification the apparatus accordv of the invention;

FIGURE 10 shows a diagrammatic end view of th apparatus according to FIGURE 9;

FIGURE 11 shows a diagrammatic view of still another modification of the invention; while FIGURE 12 shows a plan view of FIGURE 11.

In order to confine the band material within the smallest possible space, it is passed in all embodiments of the invention, as illustrated in the drawings, in the form of perice pendicular loops closely adjacent each other through the treating chamber, not shown, which may be of any desired length. The drawings merely show the suspension device and the device for forming the loops of the suspended band material. V V

In FIGURE 1, the arrows A indicate the direction in which the suspended loops 15 are conveyed through the treating chamber. Suspension rods 10 have pins 11 projecting therefrom in opposite directions, as shown particularly in FIGURES 2 and 3, and rods 10 extend transverse to the direction of movement A through the treating chamber. These rods are mounted at both ends thereof on chains or the like and are thus passed through the treating chamber. At one end of the treating cham-- her, the loops are applied, while at the other end they are taken off. For applying the loops 15 on the pins 11 a motor 13 is provided which carries feed rollers 14 and is movable on rails 12 in a direction transverse to the direction of movement A. The speed of rotation of feed rollers 14, between which the band material is inserted and which feedthe material, is adjusted in such a manner in relation to the speed of travel of motor 13 in the direction transverse to the conveying direction A that at each transverse travel of motor 13 above rods 10 and pins 11 such an amount of band material is conveyed as is necessary for attaining the number of loops of the desired length as correspond to the number of pins within one row. After each transverse travel of motor 13, suspension rods 10 are moved one step in the direction of arrow A so that the following row of pins 11 will be placed underneath the rollers 14. The operation may, however, also be cariicd out in such manner as illustrated at the right side of FIGURE 1, that two or more loops are applied on each pin of one row. In any event, rods 10 with pins 11 are moved at each transverse travel of the motor for one step in the direction of arrow A. Thus the loops hanging perpendicularly on pins 11 are moved slowly through the treating chamber in a step-.by-step movement.

The air for treating the band material, forexample, for drying the same, is preferably passed from above in a downward direction through the treating chamber so as to avoid. that the individual loops become tangled up with each other. If the air is passed through the chamber at a low velocity, it may also be conducted so as to how from below in the upward direction. The air flow should in any event be as laminar as possible. At the outlet end of the treating chamber, the band is withdrawn rod 1% with pins 11, while FIGURE 3 shows a plan view of a suspension rod 10 with pins 11 and loops 15 applied on these pins.

In order to attain a proper loop formation, it is necessary when forming the individual loops to compensate the weight of the previously formed loop which is drawing on the loop to be formed. A suitable compensating device for this purpose is illustrated in FIGURE 8. The material next to be formed into a loop passes over a guide 22, which is mounted underneath the feed rollers 14, and over a pin 11 uponwhich the ends of the preceding loop are pressed by a rubber strip 23 or a similar pressure or holding device. This holding strip 23 is: designed so as to press upon the two preceding pins 11 which hold the last loop which has previously been formed so that this loop will thus be held in a fixed position. Guide 22 with the holding strip 23 thereon moves together with motor 13 and feed rollers 14.

A modification of the device forsuspending the loops and for conveying them within the treating chamber is illustrated in FIGURE 4. In this embodiment of the invention, a pluraity of parallel rails 16 are arranged adjacent each other inthe direction of movement A, as indicated in FIGURE 1, and the motor 13 together with t e feed rollers 14 is again movable on rails 12 and above rails 16 in the transverse-direction.

In order to move loops l ina step-hy-step movement within the treating chamber, conveyor belts 18 are pro vided which run between the individual pairs of rails 16 on rollers 17. Rollers 17 together with the conveyor belts 1 8 are adapted to be raised and lowered. FIGURES -4 and 5 indicate the conveyor bolts 18 in the raised position and FIGURES 6 and 7 in the lowered position. After each transverse travel of motor 1.3 together with feed rollers 14, conveyor bolts 1% together with rollers 17 are raised and moved forwardly within the treating chamber for a short distance, so that at the return travel of motor 13 those rails 16 which are disposed underneath feed rollers 14 are againavailablefor receiving a new row of loops. The loops are then formed in such a manner that one loop hangs downwardly on each side of each pair of rails. In order to suspend the loops in this manner, a funnel 24 which is oscillating like a pendulum may be provided underneath the feed rollers 14 on motor 13. This funnel 24 is adapted to direct the loop which is next to be formed either toward one side or the other of the pair of rails 15.

The manner of treating the band in the treating chamher by means of air or gas is the same as that described with reference to FIGURES 1 to 3. Depending upon the particular adjustment of the stepwise movement of the conveyer belts 18 at each stroke, the loops may be placed as closely as may be desired.

FIGURES 9 and 10 show a further modification of the invention, in which the rails according to FIGURES 4 to 7 are replaced by a plurality of narrow parallel conveyer belts 19 which extend adjacent to each other in the-direction of movement A through a treating chamber and run over rollers 2% which are mounted at the opposite ends of the treating chamber. At one end of the conveyer belts 19 and transverse thereto, rails 12 are mounted for supporting the motor 13 and the feed rollers 14. At each transverse travel of motor 13 together with fee rollers 14, one row of loops is formed. At the end of each transverse movement of motor 13, the conveyor belts l? are shifted for a certain distance in the direction of movement A through the treating chamber in the same manner as previously described with reference to the other embodiments.

A further embodiment of the invention is illustrated in A in a similar manner as rods 10 in FIGURE 1. These rods 21 are moved transversely through the treating chamher and whenever they pass underneath the feed rollers 14 on motor 13 they are provided with loops. In addition, this apparatus is provided with a device, for example, a cam control, for turning the triangular rods 21 at every forward step for a part of one revolution about their axes. This has the advantage that the points of contact of the loops on the conveyor belt are changed during the movement within the treating chamber so that these points will he better treated within the chamber.

For applying the loops on both sides of rods 21, it is again possible to provide an oscillating funnel 24 between the feed rollers 1.4 and rods 21 which directs the loops alternately to one or the other side of each rod 21.

It is, however, also within the concept of the invention to move the loops continuously through the treating chamber instead of moving them intermittently in a step-by-step movement, and then to move the motor together with the feed rollers transversely with a controlled movement so that the rows of loops are always deposited parallel to each other on the rows of pins according to FIGURES 1 to 3, the rails according to FIGURES 4 to 7, the conveyor 4- helts according to FIGURES 9 and 10, or the rotating triangular rods according to FIGURES l1 and 12.

The essence of the invention therefore consists in conveying the band or cable {through the treating chamber in perpendicularly suspended loops 15 so that a maximum of material can be confined and treated within a relatively small space.

Althoughmy invention has been illustrated and described with reference to the preferredembodiments thereof, I wish to have it understood that it is in no way limited to the details of such embodiments but is capable of numerous modifications within the scope of the appended claims.

Having though fully disclosed by invention, what I claim is:

1. Apparatus for treating band-like material comprising a plurality of parallel rods, a plurality of horizontal pins extending in a row from each of said rods in perpendicular relation thereto, feed means disposed in fixed vertical attitude for feeding said material downwardly towards said .pins, .drive means coupled to the ,feed means -for moving the latter across said pins so that the feed movement of the last formedloop while the next sequential loop is being formed.

3. Apparatus as claimed in claim 1 wherein said second means comprises fixed rails aligned transversely of said direction, mobile means on aid rails for movement along the same, and guide means on said mobile means for guiding said material towards the first means.

4. Apparatus as claimed in claim 1 wherein said third means comprises intermittent drive means.

5. Apparatusas claimed in claim 1 wherein said pins extend fro-mopposite sides of said rods.

6. Apparatus as claimed in claim 5 wherein said pins have hooked extremities.

7. Apparatus as claimed in claim 6 wherein said means for advancing the rods comprises an endless drive member coupled to said rods.

8. Apparatus for treating bandlike material comprising a plurality of parallel rods, first means horizontally disposed on at least one side of the rods for supporting attitude for only vertical feeding the material downwardly to said first means to form sequentially all the loops of one row in one transverse movement before forming the loops of another row.

References Cited by the Examiner UNITED STATES PATENTS 1,125,910 l/lS Parlces 226-l06 1,266,946 5/18 Hirth 226l04 1,421,153 6/22 Boga-ty 226106 2,534,026 12/50 Hurxthal 226-106 X 2,719,352 10/55 Slayter etral 22697 X SAMUEL F. COLEMAN, Acting Primary Examiner.

DAVID L. MOSELEY, ANDRES I-I. NIELSEN, RA-

PHAEL M. LUPO, ERNEST A. FALLER, In.

Examiners. 

1. APPARATUS FOR TREATING BAND-LIKE MATERIAL COMPRISING A PLURALITY OF PARALLEL RODS, A PLURALITY OF HORIZONTAL PINS EXTENDING IN A ROW FROM EACH OF SAID RODS IN PERPENDICULAR RELATION THERETO, FEED MEANS DISPOSED IN FIXED VERTICAL ATTITUDE FOR FEEDING SAID MATERIAL DOWNWARDLY TOWARDS SAID PINS, DRIVE MEANS COUPLED TO THE FEED MEANS FOR MOVING THE LATTER ACROSS SAID PINS SO THAT THE FEED MEANS DEPOSITS THE MATERIALS VERTICALLY DOWNWARDLY ONTO THE PINS SEQUENTIALLY IN LOOPS, AND MEANS FOR ADVANCING THE RODS IN A DIRECTION PERPENDICULAR TO THE RODS SUCH THAT THE FEED MEANS CAN DEPOSIT MATERIAL ONTO THE PINS OF SUCCESSIVE RODS WHEREBY A MULTITUDE OF LOOPS CAN BE FORMED ALIGNED IN A PLURALITY OF PARALLEL ROWS. 